Arrangement for optical measuring of concentration of substances
US5059396A · kind A · utility
8Cited by
30References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1988 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Sep 26, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/0385
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An arrangement for optical measuring concentration of substances has a measuring space which is composed of a material selectively permeable for particles to be measured, acting back on the particles and transparent for a measuring radiation, and a measuring space is arranged in working connection with the object to be measured and the measuring radiation passes through the measuring space. The measuring space has a layer that is a water-insoluble solvent or made of poly(ethylene terephthalate) or polytetrafluoroethylene. The layer excludes a reaction from the particles to be measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.